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Drafting
has a long history, many drawing conventions, terms,
abbreviations, and practices have come into common
use. It is critically essential that different
drafters use the same practices or standards if drafting is
to serve as a reliable means of communicating technical
requirements. In this authors experience, creative drafting
techniques generally cause confusion for most end users of
the engineering drawing resulting in slower production and
elevated manufacturing costs.
In 1946 the International Organization of
Standards (ISO) was formed in the interest of worldwide
communication. One of its committees, ISO TCIO was formed to
define an accepted set of drawing standards. Today's modern
engineering and design organizations have adopted, either in
full or with minor changes, the standards set up by this
committee, which was and is made up of selected personnel
from industry, technical organizations, and education.
The American Standards Institute (ANSI) is
the current governing body that maintains the drafting
standards for the United States. The American Society of
Mechanical Engineers (ASME) is the current governing body
for Geometric Dimensioning and Tolerancing within the United
States.;
The drafting section of Engineers Edge is
not a guide to replace the drafting standards set forth by
ISO, ANSI, or ASME.
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